EP 2416017 A1 20120208 - JET PUMP FOR SUPPRESSING THE VIBRATION OF THE JET PUMP
Title (en)
JET PUMP FOR SUPPRESSING THE VIBRATION OF THE JET PUMP
Title (de)
STRAHLPUMPE MIT VIBRATIONSUNTERDRÜCKUNG
Title (fr)
POMPE À JET AVEC SUPPRESSION DE VIBRATION
Publication
Application
Priority
- JP 2010056082 W 20100402
- JP 2009090815 A 20090403
Abstract (en)
The present invention has an object to provide a jet pump, which can restrain self-excited vibration in a connection portion between an inlet mixer pipe and a diffuser pipe without inhibiting a structural deformation due to thermal expansion and the like. The jet pump includes: a slip joint structure connecting the inlet mixer pipe and the diffuser pipe to each other by inserting the inlet mixer pipe into an upper end opening of the diffuser pipe with a clearance left therebetween; and a self vibration damping structure configured such that when the clearance defined by an outer pipe wall of the inlet mixer pipe and an inner pipe wall of the diffuser pipe is widening or narrowing due to vibration of the inlet mixer pipe or the diffuser pipe, a flow path resistance inside a clearance flow path for pumped coolant water defined by the clearance is not smaller than a fluid inertia force all over the clearance flow path.
IPC 8 full level
F04F 5/46 (2006.01); F04F 5/10 (2006.01); F04F 5/54 (2006.01); G21C 15/25 (2006.01)
CPC (source: EP US)
F04F 5/10 (2013.01 - EP US); F04F 5/463 (2013.01 - EP US); F04F 5/54 (2013.01 - EP US); G21C 15/25 (2013.01 - EP US); Y02E 30/30 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
EP 2416017 A1 20120208; EP 2416017 A4 20130710; EP 2416017 B1 20170830; JP 2010242581 A 20101028; JP 5361500 B2 20131204; MX 2011010405 A 20120120; MX 342347 B 20160926; US 2012027158 A1 20120202; US 8842799 B2 20140923; WO 2010114124 A1 20101007
DOCDB simple family (application)
EP 10758891 A 20100402; JP 2009090815 A 20090403; JP 2010056082 W 20100402; MX 2011010405 A 20100402; US 201013258983 A 20100402